常用焊接结构用铸钢的化学成分及碳当量上限值标准牌号CMnSiPS残余元素碳当量NiCrCuMoV总量国际标准（ISO3755-1991）200~400W0.251.000.600.0350.0350.400.350.400.150.051.0230~450W0.251.200.600.0350.0350.400.350.400.150.051.0270~480W0.251.200.600.0350.0350.400.350.400.150.051.0340~550W0.251.500.600.0350.0350.400.350.400.150.051.0我国标准（GB/T7659-1987）ZG200~400H0.200.800.500.040.040.300.300.300.150.050.80.38ZG230~450H0.221.200.500.040.040.300.300.300.150.050.80.43ZG270~485H0.251.200.500.040.040.300.300.300.150.050.80.45日本标准（JISG5102-1991）SCW4100.221.500.800.040.040.40SCW4500.221.500.800.040.040.43SCW4800.221.500.800.040.040.500.500.45SCW5500.221.500.800.040.042.500.500.300.200.48SCW6200.221.500.800.040.042.500.500.300.200.50美国标准（ASTMA216-1998）WCA0.250.700.600.040.0450.500.400.500.250.031.00.50WCB0.301.000.600.040.0450.500.400.500.250.031.00.50WCC0.251.200.600.040.040.500.400.500.250.031.0.5550焊接结构用铸钢的力学性能标准牌号σs/MPaσb/MPaδ(%)φ(%)冲击性能Akv/Jaku/(J/cm2)国际标准（ISO3755-1991）200~400W230~450W270~480W340~550W200230270340400~550450~600480~630550~700252218154031252145452220我国标准（GB/T7659-1987）ZG200~400HZG230~450HZG270~485H200230275400450485252220403535302522594424日本标准（JISG5102-1991）SCW410SCW450SCW480SCW550SCW62023525527535543041045048055062021202018172828282828美国标准（ANSI/ASTMA216-1998）WCAWCBWCC205205275415~585485~655485~655242424353535资讯来源：国家标准化管理委员会
